XION™ Composite Nafion™ Membranes are ultra-thin, highly conductive, and highly stable reinforced proton exchange membranes (PEM). The membrane is based on a perfluorosulfonic acid (PFSA) ionomer developed by Chemours. Nafion is the most robust PFSA ionomer on the market with a long side chain and durable end group capping. The reinforcement layer is a porous substrate integrated into the structure of the membrane to provide enhanced mechanical properties. The enhanced mechanical properties allow the Xion Composite Nafion Membranes to be produced much thinner than free-standing membranes, resulting in higher ionic conductivity without sacrificing strength. Applications include fuel cells, electrolyzers, and sensors. XION™ Composite Nafiion™ Membranes come in two variations based on the equivalent weight (EW) of the ionomer: 1000EW has higher ionic conductivity, but 1100EW has greater stability.


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